That 84 year old man had a clear understanding of what he was doing.
my sight is getting clearer as i learn from you guys...
I need an answer to this, this morning, because by 10 am I should be buying steel:
Do I stick with the 3x3 and 2.5x2.5 at 344 pounds total weight
or
Do I go with 3.5x3.5 and 3x3 at 365 pounds total weight?
the reason I ask is because i dot want to break my foundation
which is this:
My base is 1200 pounds concrete with a 2x2ft, 1/2" steel plate
With two 4"x4" 5/16thick, 1.5ft long angle iron beams welded vertical to the plate to form the hinge.
Here again is the mast material breakdown:
I am
planning on building a 30ft gin tower With
one 20ft, 3"x3", 1/4" thick square structure pipe,
With one 12ft, 2.5"x2.5", 1/4" thick square structure pipe
(slid 1 OR 2 ft down inside the 3X3 and welded, making the 30ft mast)
With one 8ft Gin Pole made from 2.5"x2.5", 1/4 " thick square structure pipe
weighing a total of 344 pounds (this includes a 7ft, 60 pound turbine on the end)
---or---
I can bump up both square pipe sizes, without breaking my foundation, to build my 30ft tower with
one 20ft, 3.5"x3.5", 1/4" thick square structure pipe,
With one 12ft, 3"x3", 1/4" thick square structure pipe
(slid 1 OR 2 ft down inside the 3.5X3.5 and welded, making the 30ft mast)
With one 8ft Gin Pole made from 3"x3", 1/4 " thick square structure pipe
weighing a total of 365 pounds (this includes a 7ft, 60 pound turbine on the end)
I would rather have the strength of bigger pipe.
but not at the expense of a busted foundation...
.
.